CVE-2026-89769

CVE-2026-89769 affects the NXP PIT (Programmable Interrupt Timer) clocksource driver in the Linux kernel. The root cause is an IRQ leak on the cpuhp_setup_state error path: when this call fails after request_irq has succeeded, the cleanup path skips releasing the IRQ. Because kfree(pit) follows, ...

CVE-2026-89769 clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path

In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhpsetupstate error path When cpuhpsetupstate fails after pitclockeventpercpuinit has successfully called requestirq, the error handling jumps directly to outpitclocksourceunregister...

EUVD-2026-76681

In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhpsetupstate error path When cpuhpsetupstate fails after pitclockeventpercpuinit has successfully called requestirq, the error handling jumps directly to outpitclocksourceunregister...

CVE-2026-89768

In the Linux kernel, the following vulnerability has been resolved: fs: fix user path of nested backing files backingfileopen derives the path to be stored in the new backing file from userfile-fpath. This is incorrect when userfile itself is a backing file, which is the case for nested stacking...

CVE-2026-89768 fs: fix user path of nested backing files

In the Linux kernel, the following vulnerability has been resolved: fs: fix user path of nested backing files backingfileopen derives the path to be stored in the new backing file from userfile-fpath. This is incorrect when userfile itself is a backing file, which is the case for nested stacking...

CVE-2026-89769

In the Linux kernel, the following vulnerability has been resolved: clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhpsetupstate error path When cpuhpsetupstate fails after pitclockeventpercpuinit has successfully called requestirq, the error handling jumps directly to outpitclocksourceunregister...

CVE-2026-89767

CVE-2026-89767 is a Linux kernel overlayfs vulnerability in ovl_create_real(). When the casefold consistency check fails during directory creation, end_creating() is called twice on the same dentry, causing a double unlock of the parent directory's i_rwsem and a double dput() . The second unlock ...

EUVD-2026-76679

In the Linux kernel, the following vulnerability has been resolved: ovl: fix double endcreating on the casefold-mismatch path ovlcreatereal releases the new dentry twice when the casefold consistency check fails. The SIFDIR branch calls endcreating and sets err, then falls through to the common...

CVE-2026-89767

In the Linux kernel, the following vulnerability has been resolved: ovl: fix double endcreating on the casefold-mismatch path ovlcreatereal releases the new dentry twice when the casefold consistency check fails. The SIFDIR branch calls endcreating and sets err, then falls through to the common...

CVE-2026-89767 ovl: fix double end_creating() on the casefold-mismatch path

In the Linux kernel, the following vulnerability has been resolved: ovl: fix double endcreating on the casefold-mismatch path ovlcreatereal releases the new dentry twice when the casefold consistency check fails. The SIFDIR branch calls endcreating and sets err, then falls through to the common...

CVE-2026-89767 ovl: fix double end_creating() on the casefold-mismatch path

In the Linux kernel, the following vulnerability has been resolved: ovl: fix double endcreating on the casefold-mismatch path ovlcreatereal releases the new dentry twice when the casefold consistency check fails. The SIFDIR branch calls endcreating and sets err, then falls through to the common...

CVE-2026-89766 pidfd: hold exec_update_lock around namespace ioctl

In the Linux kernel, the following vulnerability has been resolved: pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing out a namespace file descriptor. The accompanying comment states tha...

CVE-2026-89766

In the Linux kernel, the following vulnerability has been resolved: pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing out a namespace file descriptor. The accompanying comment states tha...

CVE-2026-89766 pidfd: hold exec_update_lock around namespace ioctl

In the Linux kernel, the following vulnerability has been resolved: pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing out a namespace file descriptor. The accompanying comment states tha...

EUVD-2026-76678

In the Linux kernel, the following vulnerability has been resolved: pidfd: hold execupdatelock around namespace ioctl The PIDFDGETNAMESPACE ioctls in pidfdioctl perform a filesystem credentials ptrace access check before handing out a namespace file descriptor. The accompanying comment states tha...

CVE-2026-89766

This Linux kernel vulnerability affects the PIDFD_GET_*_NAMESPACE ioctls in pidfd_ioctl(), which perform a ptrace credentials check before handing out a namespace file descriptor. Unlike the equivalent procfs paths (proc_ns_get_link, proc_ns_readlink), the pidfd path did not hold the target task'...

CVE-2026-89764 rust: devres: fix race between concurrent revokers

In the Linux kernel, the following vulnerability has been resolved: rust: devres: fix race between concurrent revokers There is a potential race condition when two paths try to revoke a Devres concurrently. The driver core's devresreleaseall calls Revocable::revoke via the release callback, while...

CVE-2026-89765 timers/itimer: Zero-init old itimerval before copy to userspace

In the Linux kernel, the following vulnerability has been resolved: timers/itimer: Zero-init old itimerval before copy to userspace On native sparc64, struct kerneloldtimeval contains a four-byte hole after tvusec because tvsec is 64-bit while kernelsusecondst is 32-bit. putitimerval fills only t...

CVE-2026-89764 rust: devres: fix race between concurrent revokers

In the Linux kernel, the following vulnerability has been resolved: rust: devres: fix race between concurrent revokers There is a potential race condition when two paths try to revoke a Devres concurrently. The driver core's devresreleaseall calls Revocable::revoke via the release callback, while...

CVE-2026-89764

In the Linux kernel, the following vulnerability has been resolved: rust: devres: fix race between concurrent revokers There is a potential race condition when two paths try to revoke a Devres concurrently. The driver core's devresreleaseall calls Revocable::revoke via the release callback, while...